bot.exec: force buffers

src/modules/bot.js

@@ -28,18 +28,18 @@ function spawn(args) {
     stdout: {
       on: (event, handler) =>
         proc.stdout.on(event, (data) => {
-          handler(data.toString("utf8"));
+          handler(Buffer.from(data).toString("utf8"));
         }),
     },
     stderr: {
       on: (event, handler) =>
         proc.stderr.on(event, (data) => {
-          handler(data.toString("utf8"));
+          handler(Buffer.from(data).toString("utf8"));
         }),
     },
     on: (event, handler) =>
       proc.on(event, (data) => {
-        handler(data.toString("utf8"));
+        handler(Buffer.from(data).toString("utf8"));
       }),
   };
 }
@@ -128,7 +128,7 @@ exec.callback = async function (msg, line) {
     out += data + "\n";
   });
   proc.stderr.on("data", (data) => {
-    out += data + "\n";
+    out += "ERR: " + data + "\n";
   });
 
   proc.on("close", async (code) => {